Analysis
- max time kernel
149s - max time network
155s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
31/03/2024, 06:10
General
- Target b3e7d2bc32280ba96e7fce68254a89f5e813cc7cb599379685e38ceb2d8fa400.exe
- Size 1.8MB
- Sample240331-gxcr9aff62
- SHA256 b3e7d2bc32280ba96e7fce68254a89f5e813cc7cb599379685e38ceb2d8fa400
Malware Config
Extracted
-
socks5systemz
-
http://aipqude.ru/search/?q=67e28dd86f58a021415baa1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c6ea909b39
Signatures
- Detect Socks5Systemz Payload 2 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b3e7d2bc32280ba96e7fce68254a89f5e813cc7cb599379685e38ceb2d8fa400.exe"C:\Users\Admin\AppData\Local\Temp\b3e7d2bc32280ba96e7fce68254a89f5e813cc7cb599379685e38ceb2d8fa400.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-2DTNJ.tmp\b3e7d2bc32280ba96e7fce68254a89f5e813cc7cb599379685e38ceb2d8fa400.tmp"C:\Users\Admin\AppData\Local\Temp\is-2DTNJ.tmp\b3e7d2bc32280ba96e7fce68254a89f5e813cc7cb599379685e38ceb2d8fa400.tmp" /SL5="$5006A,1563259,54272,C:\Users\Admin\AppData\Local\Temp\b3e7d2bc32280ba96e7fce68254a89f5e813cc7cb599379685e38ceb2d8fa400.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe"C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe"C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
anyaudiorecord.exe
b3e7d2bc32280ba96e7fce68254a89f5e813cc7cb599379685e38ceb2d8fa400.tmp
_iscrypt.dll
memory/1624-46-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-76-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-96-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-89-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-86-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-83-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-80-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-67-0x00000000008E0000-0x0000000000982000-memory.dmp
memory/1624-77-0x00000000008E0000-0x0000000000982000-memory.dmp
memory/1624-93-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-49-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-73-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-53-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-54-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-57-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-60-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-63-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/1624-66-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/3028-39-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/3028-43-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/3028-42-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/3028-38-0x0000000000400000-0x00000000005AB000-memory.dmp
memory/3384-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3384-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3384-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4916-50-0x0000000002450000-0x0000000002451000-memory.dmp
memory/4916-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/4916-7-0x0000000002450000-0x0000000002451000-memory.dmp